Multi-agent based event-triggered distributed cooperative fault detection

In this paper, we present a multi-agent based optimal event-triggered distributed cooperative fault detection scheme. First, for each agent, the event-triggered mechanism is used to determine whether the current measurements are transmitted to the corresponding neighbor agents, addressing the design of the cooperative estimator. Then, considering the effects of external bounded disturbances and additional faults as well as transmission errors caused by event triggering, a residual generator is proposed, which achieves the optimal tradeoff between robustness to external bounded disturbances and faults sensitivity. Meanwhile, by taking into account the effects of external disturbances and information loss caused by event triggering on the residual, a residual evaluator is designed to provide the corresponding time-varying threshold. Finally, an illustrative example is given to illustrate the effectiveness of the proposed scheme. (c) 2022 ISA. Published by Elsevier Ltd. All rights reserved.